Angular dependence of energy loss in proton-helium collisions

Detalhes bibliográficos
Autor(a) principal: Schiwietz, Gregor
Data de Publicação: 1994
Outros Autores: Grande, Pedro Luis, Auth, C., Winter, Hannspeter, Salin, A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/97461
Resumo: The energy loss of 50 to 250 keV protons scattered under single-collision conditions from He atoms is investigated in terms of its dependence on the angle of scattering. At the higher projectile energies we observe an enhanced energy loss at scattering angles around 0.5 mrad. Such a behavior cannot be understood on the basis of two-body scattering models. Based on our theoretical studies we show that the combined effects of the screened target potential and of electronic transitions have to be considered for the energy loss of proton scattering in light gases.
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spelling Schiwietz, GregorGrande, Pedro LuisAuth, C.Winter, HannspeterSalin, A.2014-07-11T02:05:15Z19940031-9007http://hdl.handle.net/10183/97461000220104The energy loss of 50 to 250 keV protons scattered under single-collision conditions from He atoms is investigated in terms of its dependence on the angle of scattering. At the higher projectile energies we observe an enhanced energy loss at scattering angles around 0.5 mrad. Such a behavior cannot be understood on the basis of two-body scattering models. Based on our theoretical studies we show that the combined effects of the screened target potential and of electronic transitions have to be considered for the energy loss of proton scattering in light gases.application/pdfengPhysical Review Letters. Woodbury. Vol. 72, n. 14 (Apr. 1994), p. 2159-2162Física da matéria condensadaFisica atomica e molecularAngular dependence of energy loss in proton-helium collisionsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000220104.pdf000220104.pdfTexto completo (inglês)application/pdf317694http://www.lume.ufrgs.br/bitstream/10183/97461/1/000220104.pdfc7ed5e3dcddba8f39b80a1212065af61MD51TEXT000220104.pdf.txt000220104.pdf.txtExtracted Texttext/plain20015http://www.lume.ufrgs.br/bitstream/10183/97461/2/000220104.pdf.txt9597434bb09e0454fa7f4bafe5ea6631MD52THUMBNAIL000220104.pdf.jpg000220104.pdf.jpgGenerated Thumbnailimage/jpeg1998http://www.lume.ufrgs.br/bitstream/10183/97461/3/000220104.pdf.jpg8edb169fe2158127ea774bbd5ddc1068MD5310183/974612024-06-05 06:49:58.839933oai:www.lume.ufrgs.br:10183/97461Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-06-05T09:49:58Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Angular dependence of energy loss in proton-helium collisions
title Angular dependence of energy loss in proton-helium collisions
spellingShingle Angular dependence of energy loss in proton-helium collisions
Schiwietz, Gregor
Física da matéria condensada
Fisica atomica e molecular
title_short Angular dependence of energy loss in proton-helium collisions
title_full Angular dependence of energy loss in proton-helium collisions
title_fullStr Angular dependence of energy loss in proton-helium collisions
title_full_unstemmed Angular dependence of energy loss in proton-helium collisions
title_sort Angular dependence of energy loss in proton-helium collisions
author Schiwietz, Gregor
author_facet Schiwietz, Gregor
Grande, Pedro Luis
Auth, C.
Winter, Hannspeter
Salin, A.
author_role author
author2 Grande, Pedro Luis
Auth, C.
Winter, Hannspeter
Salin, A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Schiwietz, Gregor
Grande, Pedro Luis
Auth, C.
Winter, Hannspeter
Salin, A.
dc.subject.por.fl_str_mv Física da matéria condensada
Fisica atomica e molecular
topic Física da matéria condensada
Fisica atomica e molecular
description The energy loss of 50 to 250 keV protons scattered under single-collision conditions from He atoms is investigated in terms of its dependence on the angle of scattering. At the higher projectile energies we observe an enhanced energy loss at scattering angles around 0.5 mrad. Such a behavior cannot be understood on the basis of two-body scattering models. Based on our theoretical studies we show that the combined effects of the screened target potential and of electronic transitions have to be considered for the energy loss of proton scattering in light gases.
publishDate 1994
dc.date.issued.fl_str_mv 1994
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical Review Letters. Woodbury. Vol. 72, n. 14 (Apr. 1994), p. 2159-2162
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